Alumina ceramic technical indicators
Performance in line with Q/OKVL001-2003 technical standards Main technical indicators of wear-resistant ceramics Project indicator [1] Alumina ceramic content ≥ 92% Density ≥ 3.6 g/cm3 Rockwell hardness ≥ 80 HRA Compressive strength ≥850 Mpa Fracture toughness KΙC ≥4.8MPa·m1/2 Bending strength ≥ 290MPa Thermal conductivity 20W/mK Thermal expansion coefficient: 7.2×10-6m/mK
Application of double push plate kiln in alumina ceramic diaphragm
Application of double push plate kiln in alumina ceramic diaphragm I. Background : At present, China's new energy vehicles are in a critical period of industrialization, and the relevant policies are promising, and the new energy automobile industry is developing rapidly. However, the recent incidents of charging and charging of new energy vehicles have been reported frequently, which has undoubtedly cast a shadow on the promotion and application of new energy vehicles. In 2016, the Ministry of...
Alumina ceramic production process
Alumina ceramics are currently classified into two types, high-purity and normal-type. High-purity alumina ceramics ceramic materials with a content of 99.9% or more of Al2O3 have a sintering temperature of 1650-1990°C and a transmission wavelength of 1-6 μm. They are generally made of a molten glass in place of a platinum crucible. Alkaline and corrosive alkali metals can be used as sodium lamps; it can be used as an integrated circuit substrate and high-frequency insulation material in the...
Alumina ceramic manufacturing process
[China Aluminum Network] Alumina ceramics are currently divided into high-purity and ordinary types. High-purity alumina ceramics ceramic materials with a content of 99.9% or more of Al2O3 have a sintering temperature as high as 1650-1990°C and a transmission wavelength of 1 to 6 μm. They are generally made of molten glass to replace platinum crucibles: their light transmission properties are used. Alkali metal corrosion resistance can be used as a sodium lamp; in the electronics industry, it...
3D printer can make zirconia ceramic denture
Open the mouth, aim at the teeth 3D scan, 3D printer can print a zirconia ceramic denture... Reporter learned from Kunshan Industrial Technology Research Institute on the 21st, the hospital's incubator team Bolimai company independently developed the domestic first industry A high-performance ceramic 3D printer and matching ceramic paste were introduced, and obtained the first medical device registration certificate for 3D printed ceramic dentures in China. Before the advent of 3D printing...
Ceramic tube for high intensity discharge lamps
Department of Light Source and Lighting Engineering, Fudan University Abstract: A brief introduction to the requirements for ceramic tubes for high-intensity discharge (HID) lamps; preparation of high-purity alumina powder; fabrication of cylindrical and non-cylindrical ceramic tubes; and development of transparent ceramic tubes for HID lamps The situation. Key words: high intensity discharge lamp, ceramic tube forming method, high purity alumina powder, PCA material As an arc tube material for...
Ceramic cage and zirconia all ceramic bearings
/*728*90 created on 2018/5/16*/ var cpro_id = "u3440131"; Ceramic cage and zirconia all ceramic bearings Source: China Bearing Network Time: 2018-02-16 The ceramic cage has the advantages of wear resistance, high lightness, corrosion resistance and self-lubrication; its all-ceramic bearing made of ceramic cage can be used for extremely strong corrosion; ultra-high temperature and low cold and high vacuum Harsh environment. Zirconia all-ceramic bearing has the characteristics of anti-magnetic...
Aluminum, primary aluminum, electrolytic aluminum, aluminum ingots, alumina introduction and differences
[China Aluminum Network] Electrolytic aluminum is a method of smelting metallic aluminum, and aluminum oxide is generally decomposed into metallic aluminum by a large current in an electrolytic cell. Aluminum ingots are divided into high-purity aluminum ingots, aluminum alloy ingots and remelted aluminum ingots according to different components; they can be divided into round ingots, plate ingots, bar ingots, and T-shaped ingots according to their shapes and sizes. Aluminum is a silver-white...
The difference between activated alumina and activated alumina ceramic balls
[China Aluminum Network] The difference between activated alumina and activated alumina ceramic balls is mainly in the following areas: Activated alumina crystal: Y-AL2O3 type formula: AL2O3nH2O (0 Molecular weight: 102<Molecular weight<=117 Physicochemical properties: This product is a white, spherical porous material, non-toxic, odorless, non-powdered, insoluble in water, ethanol. Packing: This product adopts double-layer packaging. The outer plastic woven bag is lined with plastic bag,...
What are the requirements for zirconia ceramic bearings for motors?
What are the requirements for zirconia ceramic bearings for motors? Zirconium oxide ceramics are also widely used in spare parts. There are also differences in the quality requirements for the use of different parts. What are the requirements for zirconia ceramics when using bearings for motors? The following Jingong Precision will introduce you to the requirements of zirconia ceramic bearings for motors. Geometric accuracy: The geometric accuracy of zirconia ceramic bearing parts mainly refers...
2017 mobile phone zirconia ceramic backsheet industry chain report (short version)
Abstract In the 5G era of mobile phones, non-electromagnetic shielding materials benefited. Due to its high hardness, ceramic materials can pass the drop test (1.2 m high), and the texture and color effect are better. It can be made into a one-piece casing, etc., which is especially valued! In the past year, Sanhuan Group, Changying Precision, Orient, East... Non-electromagnetic shielding materials benefit from the 5G era of mobile phones. Due to its high hardness, ceramic materials can pass...
Preparation of zirconia ceramic powder
The production of zirconia ceramics requires the preparation of powders with high purity, good dispersion, ultrafine particles and narrow particle size distribution. There are many preparation methods for zirconia ultrafine powders. The purification of zirconia mainly includes chlorination and thermal decomposition, and alkali metals. Oxidative decomposition method, lime melting method, plasma arc method, precipitation method, colloid method, hydrolysis method, spray pyrolysis method, and the...
Introduction of zirconia ceramic buttons
Zirconia ceramic buttons have high strength and toughness at room temperature, good wear resistance, high temperature resistance, corrosion resistance, high hardness, and high brightness. When the zirconia ceramic ball is at 1000°C, its strength and hardness almost do not change and its density is 8.00 g/cm3. At room temperature, it can remain as it is without change. Zirconia ceramic buttons, that is, its production requires the preparation of high-purity, good dispersion performance,...
Alumina ceramic production process
Alumina ceramics are currently classified into two types, high-purity and normal-type. High-purity alumina ceramics ceramic materials with a content of 99.9% or more of Al2O3 have a sintering temperature as high as 1650-1990°C and a transmission wavelength of 1 to 6 μm. They are generally made of molten glass to replace platinum crucibles: Alkaline and corrosive alkali metals can be used as sodium lamps; it can be used as an integrated circuit substrate and high-frequency insulation material in...
Alumina ceramic manufacturing process
[China Aluminum Network] Alumina ceramics are currently divided into high-purity and ordinary types. High-purity alumina ceramics ceramic materials with a content of 99.9% or more of Al2O3 have a sintering temperature as high as 1650-1990°C and a transmission wavelength of 1 to 6 μm. They are generally made of molten glass to replace platinum crucibles: their light transmission properties are used. Alkali metal corrosion resistance can be used as a sodium lamp; in the electronics industry, it...
The difference between activated alumina and activated alumina ceramic balls
[China Aluminum Network] The difference between activated alumina and activated alumina ceramic balls is mainly in the following areas: Activated alumina Crystal: Y-AL2O3 type Molecular formula: AL2O3nH2O (0 Molecular weight: 102<Molecular weight<=117 Physicochemical properties: This product is a white, spherical porous material, non-toxic, odorless, non-powdered, insoluble in water, ethanol. Packing: This product adopts double-layer packaging. The outer plastic woven bag is lined with...
Experimental study on high efficiency end face grinding of silicon carbide ceramics
Silicon carbide (SiC) ceramic materials have excellent properties such as high hardness, high wear resistance, corrosion resistance, high temperature resistance, low density and good thermal conductivity. They are widely used in aerospace, machinery manufacturing, automotive parts and defense industry. At present, the use of diamond grinding wheel for grinding silicon carbide is a widely used processing method. Domestic grinding processing mainly carries out experimental research on small...
Thermally Conductive Silicon Carbide Insulated Ceramics Ceramics Supplier
JRFT Thermal Conductive Silicon Carbide Insulation Ceramics Ceramics Suppliers [Please call 400-662-8218 ] Shenzhen Jiari Fengtai Electronic Technology Co., Ltd. is a high-tech specialized in the research, development, production and sales of electronic thermal insulation materials. enterprise. The company's main business: (high) thermal silica film (high) thermal conductive tape (sheet), thermal potting, RTV single component silica gel, thermal grease , thermal paste, thermal double-sided...
Japan developed the world's highest temperature resistant silicon nitride ceramics
It is reported that in January 2004, the "New Century Heat-resistant Materials Project" ceramics group of the Japan Material Research Institute developed a silicon nitride (Si3N4) ceramic material with the world's highest heat-resistant temperature of 1500°C. The conventional silicon nitride material has a heat-resistant temperature of 1,200C. The highest heat-resistant temperature has been 1350C attained by the Ministry of Economy, Trade and Industry's ceramic gas turbine project. The new...
How to make silicon carbide ceramics? What are the advantages of silicon carbide ceramics?
Ceramic products are a superb craftsmanship and have been used in many places in our lives. It belongs to high-tech products that need to pass layers of inspection before they can enter our eyes. The small series of the decoration house below comes to everyone to talk about how to make silicon carbide ceramics , and what are the advantages of such products. Let more people around us no longer be familiar with such products. First, how to make silicon carbide ceramics? 1. Ceramic products are...
Introduction to zirconia ceramics
Zirconia ceramics as a white, yellow or gray containing impurities, generally contain HfO2, easily separated. There are three crystal states of pure ZrO2 under normal pressure. The production of zirconia ceramics requires the preparation of powders with high purity, good dispersion, ultrafine particles and narrow particle size distribution. There are many preparation methods for zirconia ultrafine powders. The purification of zirconia mainly includes chlorination and thermal decomposition, and...
Study on Mechanical Properties of Hot Pressed Sintered Silicon Nitride Ceramics
According to user requirements, the maximum strength, elastic modulus (E), constant compressive strength, constant load elongation, yield strength, etc. of non-metallic materials can be obtained. Yield strength, non-proportional strength, total compressive strength, compressive (pulling) strength, elongation, etc. of metallic materials. What is the most accurate measurement of the flexural strength test of porous silicon nitride ceramics? Silicon nitride wafer is a special material. For bending...
Analysis of Oxidation Properties of Silicon-based Ceramics
Ceramics are refractory materials that contain oxides as the main component, and they have been used in harsh environments such as steel, glass manufacturing, coal gasification, and other fields. There have been many reactions involving refractory materials and various gases and slags. Reported. In addition, non-oxide ceramics, namely silicon carbide (SIC) and silicon nitride (Si3N4), are superior to metal materials and oxide ceramics due to high-temperature strength and creep resistance, and...
Features of bearing zirconia ceramics
/*728*90 created on 2018/5/16*/ var cpro_id = "u3440131"; Features of bearing zirconia ceramics Source: Bearing network time: 2013-06-28 The characteristics of zirconia ceramic materials are: 1 crystal layout: some stable zirconia (PSZ); cubic phase (cub) layout + monoclinic (mono) layout. 2 high resistance (the highest of all ceramic materials); bending strength up to 1300MPa; but fracture resistance is sensitive to temperature; high temperature should be used. 3 commonly used zirconia...
